Most people sit too far away or have displays too small to take advantage of the increased pixel count; 4K is not a tech that makes sense on a 50″ TV. That said, if you want a big display and are going to watch it from a reasonable distance it is very worth it. Yes, the CE industry is trying to sell you new kit (that’s why they exist), but this is no different than the upward trend (480->720->1080->3D) in resolution and display capability. There were plenty of naysayers for that too.
